Pith Number

pith:3FSLC235

pith:2010:3FSLC235NVBKZJKULQGDZLX5Q3

not attested not anchored not stored refs pending

Theoretical spectra of photoevaporating protoplanetary discs: An atlas of atomic and low-ionisation emission lines

Barbara Ercolano (IoA Cambridge, Exeter), James E. Owen (IoA Cambridge), UCL

arxiv:1004.1203 v2 · 2010-04-07 · astro-ph.GA · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3FSLC235NVBKZJKULQGDZLX5Q3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:08:08.175709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d964b16b7d6d42aca5545c0c3caefd86e13c6d3882d7acf38ce8ed63aba48420

Aliases

arxiv: 1004.1203 · arxiv_version: 1004.1203v2 · doi: 10.48550/arxiv.1004.1203 · pith_short_12: 3FSLC235NVBK · pith_short_16: 3FSLC235NVBKZJKU · pith_short_8: 3FSLC235

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/3FSLC235NVBKZJKULQGDZLX5Q3 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d964b16b7d6d42aca5545c0c3caefd86e13c6d3882d7acf38ce8ed63aba48420

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2126100191de61f32ae2c733a4f8e147aa23d0ab12e60bec5a7d008f994cb5ff",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-04-07T22:44:13Z",
    "title_canon_sha256": "ccb02e83b6eab2354ed497ce8d2ec1856028b113f85116bbd22a3da82ef8d8fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1203",
    "kind": "arxiv",
    "version": 2
  }
}